BIOD 152 Exam 2 performed well 2024

This layer of the meninges is tightly attached to the brain - ANSWERSPia Mater (menix) The __________ fissure separates the right and left cerebral hemispheres - ANSWERSMedian longitudinal Describe the function of the brain ventricles - ANSWERSThere's 4 ventricles in the interior of the brain, chambers filled with CSF which is produced there. Once formed, the CSF circulates through the ventricles and into the subarachnoid space bathing and floating in the brain All of the following are functions of the hypothalamus except - ANSWERSLinks the nverous and endocrine systems What is the largest portion of the brain - ANSWERSCerebeLLUM This region of the brain controls decision making skills - ANSWERSFrontal lobe A patient is having difficulty producing speech sounds, but other motor movements are normal. Which area of the brain is most likely damaged? - ANSWERSBroca's area What is muscle tone and how is it maintained? - ANSWERSMuscles remain partially contracted while at rest. It is continuously monitored and maintained by the cerebellum to keep bones and joints in place. Which statement is false concerning the brainstem? - ANSWERSThe midbrain helps to regulate breathing Which of the following is true concerning the cerebellum? - ANSWERSThe anterior lobe receives information from the body trunk. Which of the following is most likely a symptom of ALS? - ANSWERSImpaired ability to swallow. Which of the following is false concerning a CVA - ANSWERSAn ischemic stroke is also known as a "brain bleed." A patient is unable to extend his fourth and fifth digits when asked to open his hand. What is most likely the cause? - ANSWERSUlnar nerve damage Label the following spinal cord regions in the diagram below - ANSWERS1. Lateral column 3. Gray commissure 4. Anterior column 6. Anterior/Ventral horn 11. Ventral root What cranial nerve is highlighted in blue (also indicated by the arrow) in the figure below? - ANSWERSOculomotor What type of nerve is the cranial nerve below and what does it control? (Highlighted in blue, also indicated by the arrow) - ANSWERSMotor: Shoulder movement The maxillary branch of the trigemnial nerve: - ANSWERSReceives sensory information from the upper lip and upper gums Use the figure to answer the following questions. Answer by writing the letter (A-J) from the figure that corresponds with the correct cranial nerve. - ANSWERS1. A Olfactory 2. C Oculomotor 3. D Trigeminal 4. F Facial 5. H Glossopharyngeal Label the nerves (A-C) in the figure - ANSWERSA-Radial B-Ulnar C- Median The lumbar plexus is from spinal nerves - ANSWERST12-L04 A patient is on a ventilator post a car accident. What region of the spine of most likely damaged? - ANSWERSC03-C05 A patient is not able to extend his left wrist or fingers. What nerve is most likely damaged? - ANSWERSRadial A patient sustained damage to their femoral nerve. What is most likely limited? - ANSWERSHip flexion, knee extension Which of the following is true concerning the lumbar plexus? - ANSWERSThere are two divisions: anterior and posterior. These contain the ganglia for the sympathetic nervous system that controls the effector organs in the trunk, head, and limbs - ANSWERSSympathetic trunk ganglia Which of the following is false concerning the sympathetic nervous system? - ANSWERSIt is also called the craniosacral division A patient comes into the ER following an accident. she is scared and starting to hyperventilate. You talk with her in a calm, reassuring manner as she receives medical care. You are trying to increase the activity in which division of her nervous system? Explain - ANSWERSYou are trying to increase the activity of the parasympathetic nervous system as it is also known as the "housekeeper system" because it promotes all the internal responses we associate with a relaxed state. The parasympathetic symptom also acts to slow the heart rate. If someone sustains an injury to the area of the spinal cord, as shown by blue oval, would you be more likely to see paralysis or decreased sensation? Explain - ANSWERSYou would be more likely to see paralysis (muscular weakness) because motor neurons exit the spinal cord anteriorly.